73908313 has 2 divisors, whose sum is σ = 73908314. Its totient is φ = 73908312.

The previous prime is 73908301. The next prime is 73908319. The reversal of 73908313 is 31380937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73822464 + 85849 = 8592^2 + 293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73908313 is a prime.

It is not a weakly prime, because it can be changed into another prime (73908319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36954156 + 36954157.

It is an arithmetic number, because the mean of its divisors is an integer number (36954157).

Almost surely, 2^73908313 is an apocalyptic number.

It is an amenable number.

73908313 is a deficient number, since it is larger than the sum of its proper divisors (1).

73908313 is an equidigital number, since it uses as much as digits as its factorization.

73908313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 73908313 is about 8596.9944166552. The cubic root of 73908313 is about 419.6601805327.

It can be divided in two parts, 7390 and 8313, that multiplied together give a triangular number (61433070 = T₁₁₀₈₄).

The spelling of 73908313 in words is "seventy-three million, nine hundred eight thousand, three hundred thirteen".